The process industries are not only one of the big energy buyers, they also play a major role in future energy concepts. Whereas large-scale storage techniques traditionally focus mainly on pump storage stations and compressed-air stores, for medium-sized applications chemical storage is becoming increasingly interesting. This includes redox-flow batteries as well as heat store systems. These range from relatively simple sensitive heat stores (like water in residential heating systems) to latent-heat storage where the temperature of the storage medium remains constant to sorption systems based on the temperature gradient caused by adsorption processes e.g. in zeolithes.
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